The astrophyllite is mainly found in the form of Brown needles in quartz. It is often confused with rutile.
Ofen carved in cabochon, astophyllite is widely used in jewelry.
To learn more about the mineralogy of the astrophyllite, see mindat.org
The Encylopedia of gems in English is still under construction. Thanks to visit the encyclopedia of gems in French.
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Astrophyllite
- Translations : Astrophyllit, 星葉石, Астрофиллит, Aastrophyllita
- Synonym : Aastrophyllite, Asterophyllite, Astrofillite.
- Etymology : From the greek "astron" άστρον = star and "phullon" φύλλον = leaf, because of its appearance.
- Discovery: 1854 by Sheerer
- Comment : The astrophyllite is mainly found in the form of Brown needles in quartz.
Gemological data
- Chemical formula : (K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7
- Hardness (Mohs) : 3 - 3.5
- Density : 3.2 - 3.4
- Crystal system : Triclinic
- Group : Astrophyllite
- Mineralogical Class : Phyllosilicates
The gallery
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- Astrophyllite – Russie
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- Astrophyllite – Russie
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- Astrophyllite – Russie
